/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Math/SlopeUtils.h
Return true if the segment BP is inside the sector defined the half-lines [BA) and [BC) in the counterclockwise. Return false if ABP angle or PBC angle is too flat (smaller than FlatAngle)
namespace UE { namespace CADKernel { bool UE::CADKernel::IsPointPInsideSectorABC ( const [FPoint2D](API\Runtime\CADKernel\CADKernel\Math\FPoint2D) & PointA, const [FPoint2D](API\Runtime\CADKernel\CADKernel\Math\FPoint2D) & PointB, const [FPoint2D](API\Runtime\CADKernel\CADKernel\Math\FPoint2D) & PointC, const [FPoint2D](API\Runtime\CADKernel\CADKernel\Math\FPoint2D) & PointP, const double FlatAngle ) } }